RTOS/TMS320C6678: IPC wait for ever problem

dariush karami

Genius 3165 points

Part Number: TMS320C6678

Tool/software: TI-RTOS

I want to implement an architecture on C6678 DSP. as below:

1) Core0 is responsible for communication between Core1, PC and FPGA and data managing.

2) Core1 is responsible for processing.

3) Core0 communicate to Core1 by IPC.

I want Core0 check and take the processing result if the processing result from Core1 is ready. If the processing result is not ready, the Core0 progresses it's other tasks. I used " MessageQ_get()" function for receiving data from Core1 but there is some problems.

If I use " wait for ever " for time out in MessageQ_get() function, Core0 wait for ever and system crash down.

Question 1:

What should I do?Should I use a time out number? if the answer is yes, what time out number should use?

Question 2:

Please give me a solution.

Best Regards

over 9 years ago

0 Sasha Slijepcevic over 9 years ago

TI__Mastermind 37985 points

dariush,
it's OK to use MessageQ_FOREVER for the timeout value. Can you find out what's Core1 doing while Core0 is waiting and which code is causing the crash, more specifically is Core1 is trying to acquire more memory?

0 dariush karami over 9 years ago in reply to Sasha Slijepcevic

Genius 3165 points

Hi
I think some misunderstanding has happened and let me explain my question from another perspective. Is it possible to use MessageQ_get() as belowIf I use MessageQ_get() for receiving data:
The program doesn't wait forever on MessageQ_get() function.

I mean when the program runs the MessageQ_get() function, if the result data is receivedit must process it.

If the MessageQ_get() function has not received the data, the program must not waist time on MessageQ_get() function and must check
it again on the next time step.

Thanks

0 Sasha Slijepcevic over 9 years ago in reply to dariush karami

TI__Mastermind 37985 points

I am pretty sure that you can do that and any message received in the meantime will wait in the message queue, but I will ask someone more knowledgeable about IPC to give you a more definite answer.

0 ToddMullanix over 9 years ago in reply to Sasha Slijepcevic

TI__Guru* 96960 points

Hi,

I've moved your thread to the device forum. They are actively working with the IPC modules and will be able to give a more complete answer.

Todd

0 dariush karami over 9 years ago in reply to ToddMullanix

Genius 3165 points

Please answer me, I'm waiting.

0 Yordan Kovachev over 9 years ago in reply to dariush karami

TI__Guru**** 161600 points

Hi,

The team has been notified. Their feedback will be posted here.

In the mean time can you share which SDK are you using?

Beset Regards,
Yordan

0 dariush karami over 9 years ago in reply to Yordan Kovachev

Genius 3165 points

Please answer me, I'm waiting.

MCSDK 2.1.2.6

0 dariush karami over 9 years ago in reply to dariush karami

Genius 3165 points

Why nobody answer me????????

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RTOS/TMS320C6678: IPC wait for ever problem